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HIGH

CVE-2022-29181

CVSS v3

8.2

HIGH

EPSS Score

3.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • nokogiriRubyGemsall versions · fixed in 1.13.6

Vendor advisories

  • CVE-2022-29181 Red Hat Product Security4 products fixed · 3 known affected

    rubygem-nokogiri: Improper Handling of Unexpected Data Type in Nokogiri

    rubygem-nokogiri as a component of CloudForms Management Engine 5 · rubygem-nokogiri-doc as a component of CloudForms Management Engine 5 · rubygem-nokogiri.src as a component of CloudForms Management Engine 5

  • RHSA-2022:8506 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Satellite 6.12 Release

Full record on NVD

Description

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.

Technical details

Published
2022-05-20

Frequently asked questions

What is CVE-2022-29181?

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.

Is CVE-2022-29181 actively exploited?

Active exploitation of CVE-2022-29181 has not been confirmed. Its EPSS score was 3.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-29181?

CVE-2022-29181 has a CVSS v3 base score of 8.2 (HIGH severity).

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